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Precaution and alarming device for combined harvester plugging fault

A technology of combine harvester and fault warning, applied in the direction of harvesters, cutters, agricultural machinery and implements, etc., can solve the problems of limited simple alarm, difficult arrangement of torque sensors, poor adaptability to active speed changes, etc., to avoid failures effect that occurs

Inactive Publication Date: 2009-12-09
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once a blockage occurs, it is generally time-consuming and labor-intensive to remove the blockage. In severe cases, it will cause mechanical failure and require downtime for maintenance, which will directly affect the harvesting season and the economic income of the machine operator.
[0003] For combine harvester blockage faults, the technical level at home and abroad is still limited to simple alarms, and there is a lack of systematic research and development of related fault diagnosis technologies, methods and theories
According to the data (He Satellite, Zhang Ligong, Zhang Jixian, combine harvester fault warning device (P), utility model patent, application number: 97203354.8, publication number: CN2325968, date of issuance: 1999.04.15, main classification number: A01D73 / 00 ), at present the main method adopted for blockage alarm is speed monitoring. When the speed exceeds the rated range, an alarm signal is sent. Poor adaptability to active changes limits its application
Another method is to use the method of torque measurement. This method is more reliable in principle than only measuring the speed of the alarm. Promote on Combine Harvesters

Method used

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  • Precaution and alarming device for combined harvester plugging fault
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  • Precaution and alarming device for combined harvester plugging fault

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Embodiment Construction

[0032] The structure of the device of the present invention is as figure 1 shown, including

[0033] The sensor module consists of three sensors of the same type, which are used to synchronously detect the instantaneous speed change process of the power output shaft of the combine harvester, the threshing drum and the grain conveying auger, and serve as a monitoring signal source for fault diagnosis;

[0034] The analog signal processing module independently processes three sensor signals for signal amplification, filtering and shaping;

[0035] The signal conversion module independently converts the CMOS level of the three-way sensor signal output into a TTL level for single-chip microcomputer input;

[0036] The power supply module converts the 12V DC power supply of the harvester to supply power to sensors, analog signal processing circuits, single-chip microcomputers, display screens and signal conversion modules;

[0037] The central information processing unit module o...

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PUM

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Abstract

The invention relates to a precaution and alarming hardware device for combined harvester plugging fault when in harvesting, belonging to the technical field of the agricultural machinery electronic equipment and comprising the following components: a sensor module, an analog signal processing module, a signal converting module, a power supply module, a singlechip central information processing unit module, a liquid crystal display (LCD) module, a tri-color LED fault grading display, and an upper computer communication module. The device provided in the invention can be assembled into the cab of the combined harvester, so when in harvesting, the device can perform real-time precaution and alarming on a threshing cylinder and a grain-delivering auger parts, and promptly provide state information of the harvester for the driver to prevent plugging fault from occurring.

Description

Technical field: [0001] The invention relates to a blockage fault early warning and alarm device for a combine harvester, which belongs to the technical field of agricultural machinery and electronic equipment, and is particularly suitable for early warning and alarm of blockage faults of a threshing drum and a grain conveying auger when the combine harvester is harvesting in the field . Background technique: [0002] When the combine harvester is harvesting in the field, blockage failure is one of the common failures. Once a blockage occurs, it is generally time-consuming and labor-intensive to remove the blockage. In severe cases, it will cause mechanical failure and require downtime for maintenance, which will directly affect the harvesting season and the economic income of the operator. [0003] For combine harvester blockage faults, the technical level at home and abroad is still limited to simple alarms, and there is a lack of systematic research and development of re...

Claims

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Application Information

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IPC IPC(8): A01D41/127
Inventor 宋寿鹏易立单刘金鸽马晓昆李萍萍
Owner JIANGSU UNIV
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